I recently noticed my scripted Quick Find wasn’t finding all matching records. Digging around I discovered that the offscreen window containing all the fields to search was coming up in table view and for some reason while all fields were placed on the layout, they were not all showing in table view (there were a LOT of fields) and consequently were not making their way into the Quick Find search. (Maybe there’s a limit on the number of fields that can display in table view?)
The remedy was simply to add a View As Form script step to ensure the layout always loads in Form view (even if I may have previously viewed it manually in Table view).
I wonder if the quickfind is a bit more object orientated. If it loops thru all the objects on the layout then checks to see if quickfind is checked off on it , does a find (without entering Find mode) and then adds up all the finds. In this way if the object is not drawn on screen then it wont loop thru them